Which of the following is NOT a benefit of exercise?

Increased stress levels is not considered a benefit of exercise. In fact, regular physical activity is known to be effective in reducing stress and anxiety. Exercise promotes the release of endorphins, often referred to as "feel-good" hormones, which can enhance mood and create a sense of well-being.

Improved mental health, lowered risk of chronic diseases, and enhanced physical fitness are all well-documented benefits of engaging in regular exercise. Mental health can be positively impacted through exercise by alleviating symptoms of depression and anxiety. Furthermore, regular physical activity is associated with a decreased risk of various chronic conditions, such as heart disease, diabetes, and obesity. Enhanced physical fitness relates to increased strength, flexibility, and endurance, further supporting overall health. Therefore, the assertion that exercise increases stress levels stands in contrast to the wide range of positive effects it has on both mental and physical health.